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Vet Rec. 2008 Apr 26;162(17):541-6.

Trends in phage types and antimicrobial resistance of Salmonella enterica serovar Enteritidis isolated from animals in Great Britain from 1990 to 2005.

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  • 1Department of Food and Environmental Safety, Veterinary Laboratories Agency - Weybridge, New Haw, Addlestone, Surrey, UK.


Surveillance data for Salmonella enterica serovar Enteritidis incidents and isolations from food animals in Great Britain from 1990 to 2005 were analysed to detect any trends and provide the basis for a comparison between phage types (pt) and antimicrobial sensitivity patterns in human beings and animals. During 2001 to 2005 there was a decrease in incidents involving most species except ducks. Only the numbers of incidents involving pts 6, 6a, 9b and 14b (in ducks) and pts 6a and 13a (in mammals) increased significantly during this period, whereas there were 93 per cent fewer incidents involving pt 4 than in 1990 to 2000. After adjustment for pt, the isolates from ducks were more resistant to nalidixic acid, tetracyclines and sulfonamides, and were more likely to be multiresistant than isolates from chickens. Isolates from turkeys tended to be more resistant to sulfonamides than isolates from chickens. pts 1, 5a, 6, 6a and 35 had the highest level of resistance after adjusting for species. During 2001 to 2005 there was an increase in resistance among pts 1, 6 and 7, in most cases involving nalidixic acid.

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